Return-Path: X-Original-To: apmail-couchdb-dev-archive@www.apache.org Delivered-To: apmail-couchdb-dev-archive@www.apache.org Received: from mail.apache.org (hermes.apache.org [140.211.11.3]) by minotaur.apache.org (Postfix) with SMTP id D0E3794F5 for ; Wed, 14 Dec 2011 22:52:31 +0000 (UTC) Received: (qmail 39494 invoked by uid 500); 14 Dec 2011 22:52:31 -0000 Delivered-To: apmail-couchdb-dev-archive@couchdb.apache.org Received: (qmail 39452 invoked by uid 500); 14 Dec 2011 22:52:31 -0000 Mailing-List: contact dev-help@couchdb.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Reply-To: dev@couchdb.apache.org Delivered-To: mailing list dev@couchdb.apache.org Received: (qmail 39444 invoked by uid 99); 14 Dec 2011 22:52:31 -0000 Received: from athena.apache.org (HELO athena.apache.org) (140.211.11.136) by apache.org (qpsmtpd/0.29) with ESMTP; Wed, 14 Dec 2011 22:52:31 +0000 X-ASF-Spam-Status: No, hits=-0.0 required=5.0 tests=SPF_PASS X-Spam-Check-By: apache.org Received-SPF: pass (athena.apache.org: local policy) Received: from [203.216.7.223] (HELO www.atypical.net) (203.216.7.223) by apache.org (qpsmtpd/0.29) with ESMTP; Wed, 14 Dec 2011 22:52:25 +0000 Received: from joant by www.atypical.net with local (Exim 4.77) (envelope-from ) id 1RaxgC-000386-Ab for dev@couchdb.apache.org; Thu, 15 Dec 2011 07:52:04 +0900 Date: Wed, 14 Dec 2011 17:52:04 -0500 From: Joan Touzet To: dev@couchdb.apache.org Subject: Re: Unique instance IDs? Message-ID: <20111214225204.GC11299@atypical.net> References: <4EE72C0E.4080704@googlemail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <4EE72C0E.4080704@googlemail.com> User-Agent: Mutt/1.5.21 (2010-09-15) -1 on using URI/URLs, for the simple fact that mobile and desktop devices often don't have a stable hostname and/or IP address. This is a huge area where CouchDB is used, increasingly so, and attempting to tie a DB UUID to something inherently variable on the platform is doomed to fail. Renaming my PC or phone, getting a new DHCP address, connecting to a different network or changing the MAC address of my NIC should not invalidate my DBs, their "UUIDs", or cause unreasonable problems for replication. -Joan